BACKGROUND: To get the information about the clinical characteristics of the paroxysmal junctional tachycardia in children and to get the general principle in managing these children. METHOD: Analysis of the medical records of the 43 patients(male 30, female 13) with paroxysmal junctional tachycardia(JT) who had been followed-up in this hospital for a mean of 4.6 years(range 1 month up to 12 years) was done. RESULT: In 19 patients, JT started before 1 years of age : in 2, during gestational period, in 15, within 4 months of age, in 2, after 4 months of age. The next peak was 7 in the age of 5 years. The associated cardiac abnormalities were complex congenital defects in 2, tumor in 1, dilated and hypertrophic cardiomyopathy in 1 each. The significant hemodynamic disturbances during JT were noticed in 25. Among those whose surface electrocardiogram during JT were available, mean heart rate during JT was 232rpm(range 160-310) ; narrow QRS complex in 33 and wide in 1 ; P` wave in ST segment or T wave in 22. The delta waves were noticed after stopping JT and during followe up in 20. The types of delta waves were A in 7, B in 9, and indeterminate in 4. The different forms of delta waves unrelated to the degree of fusion were noticed in 6 ; disappearance or intermittent form of delta wave in 4. The efficacy of stopping JT was as follows : ATP 84.4%(38/45), diving reflex 50%(7/14), other vagal stimulation 71.4%(5/7), digoxin 72.7%(8/11), verapamil 54.5%(12/22), D/C cardioversion 62.5%(5/8), neosynephrine 100%(2/2). There were 2 deaths due to associated cardiac defects and 2 elective catheter ablations during the followe up period. The preventive medication with digoxin, beta blocker, and/or verapamil was succesful in 14, partially succesful in 11, failed in 14. The 7 persistent JT were treated with amiodarone in 3, with amiodarone and beta blocker in 1, with flecainide and digoxin in 1. In 1, surgical ablation of accessory pathway was done due to persistent JT. At present, JT do not recur or occur transiently without drugs in 29 ; with drugs, JT become controlled without recurrence in 4, with transient episodes in 4 and with intermittent episodes in 1. CONCLUSION: Althouh the JT in children is benign in most cases spite of the severity during the early period, JT is persistent in cases and needs potent drugs to control JT. Ablation of the foci may be necessary in these cases. Even in patients whose long-term results are benign, it is necessary to choose the optimal drugs to terminate and prevent the JT during the intervening period.
Adenosine Triphosphate ; Amiodarone ; Cardiomyopathy, Hypertrophic ; Catheters ; Child* ; Congenital Abnormalities ; Digoxin ; Diving ; Electric Countershock ; Electrocardiography ; Female ; Flecainide ; Heart Rate ; Hemodynamics ; Humans ; Medical Records ; Phenylephrine ; Recurrence ; Reflex ; Tachycardia* ; Verapamil

No abstract available.
Child ; Coronary Vessels* ; Echocardiography ; Humans

No abstract available.

Primary non-Hodgkin's lymphoma of the lung is rare among extranodal lymphomas. The most common form is low grade B-cell type originated from the mucosa-associated lymphoid tissue (MALT) of the lung and primary peripheral T cell lymphoma of the lung is extremely rare. We recently experienced a case of fine needle aspiration cytology of primary peripheral T cell lymphoma of the lung in a 39-year-old male patient. The cytologic smears revealed some sheets of reactive epithelial cells, epithelioid histiocytes, and numerous polymorphous population of lymphoid cells composed of small and intermediate sized lymphoid cells and mature lymphocytes. Lymphoid cells were slightly larger than normal mature lymphocytes and showed significant irregularity of nuclear membrane. The internal nuclear structure was marked by chromatin clumping, clear parachromatin areas, and inconspicuous nucleoli. Histopathologically, atypical small lymphocytes infiltrated in the interstitium and alveolar sac. By the immunohistochemical study and molecular biologic study of gene rearrangement, the T cell clonality of atypical lymphoid cells was confirmed. Key words: Peripheral T cell lymphoma, Lung, FNAC
Adolescent* ; Adult ; B-Lymphocytes ; Biopsy, Fine-Needle ; Carcinoma, Medullary ; Chromatin ; Epithelial Cells ; Gene Rearrangement ; Histiocytes ; Humans ; Lung ; Lymphocytes ; Lymphoid Tissue ; Lymphoma ; Lymphoma, Non-Hodgkin ; Lymphoma, T-Cell, Peripheral ; Male ; Nephrosis, Lipoid* ; Nuclear Envelope ; Thyroid Gland

No abstract available.
Arrhythmias, Cardiac*

No abstract available.
Echocardiography* ; Echocardiography, Doppler, Color ; Ligation*

No abstract available.
Ductus Arteriosus, Patent*

No abstract available.
Child ; Humans

A case of unilateral pulmonary vein atresia with absent right superior vena cava in 9 years-old boy is described with a discussion. Clinical findings were similar to other reports and consisted of hemoptysis, dyspnea and anemia. A chest X-rary revealed irregular vascular marking on left lung fiedld and increased interstitial marking on right upper lung field. The diagnosis could be confirmed with radionuclide perfusion study, MRI scan of heart and great vessels and angiography which demonstrated a small right pulmonary artery, pruned its peipheral branches, stasis of contrast material and nonvisualization of draining righ pulmonary veins. Pneumonectomy, patch angioplasty of diaphargm excision will be necessary.
Anemia ; Angiography ; Angioplasty ; Child ; Diagnosis ; Dyspnea ; Heart ; Hemoptysis ; Humans ; Lung ; Magnetic Resonance Imaging ; Male ; Perfusion ; Pneumonectomy ; Pulmonary Artery ; Pulmonary Veins* ; Thorax ; Vena Cava, Superior*

No abstract available.
Arteries*